On 18 Mar 2018 03:14:41 GMT, Robert Riches 
declaimed the following:

>To be fair, IIUC, at least the early Amigas had some
>special-purpose hardware assistance (the Copper and a
>couple of other chips) rather than doing _everything_ in

 Mostly for the graphics -- the blitter could handle moving sprites and
overlaying windows... And DMA operations. I believe the main CPU still had
to set up the sound forms.

 I'd rounded to 8MHz but in reality, the Amiga base was closer to 7.2MHz
-- but the chips handling the display allowed it to achieve better
performance than the 8MHz Mac of the time (since the Mac processor had to
handle the display scan, user code only got dedicated time during retrace
intervals).


--
 Wulfraed                 Dennis Lee Bieber         AF6VN
 wlfraed@ix.netcom.com    HTTP://wlfraed.home.netcom.com/

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